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Check 4
The IPS controller on the power supply board may be damaged. Replace the
power supply board with a new one. Refer to chapter 4 for more information. If
the keyboard is still not functioning properly, perform Check 5.
Check 5
The accupoint control button contact is connected to the sound board. The
accupoint control button contact may be damaged. Replace it with a new one.
Refer to chapter 4 for more information. If the keyboard is still not functioning
properly, perform Check 6.
Check 6
The sound board may be damaged. Replace the sound board with a new one.
Refer to chapter 4 for more information. If the problem still exists, other FRUs
may be damaged.
2-24
610CT
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